ItpEnableFeederBackup
The function block ItpEnableFeederBackup enables storing of the path for retracing. It has to be activated once before the NC program (G-Code) is started. If the Blocksearch functionality is used, ItpEnableFeederBackup has to be activated before ItpBlocksearch is called. Feeder backup is executed as long as a TwinCAT restart or bEnable = FALSE is triggered with a rising edge at bExecute.
If feeder backup is not enabled, retracing does not work. This can be verified via ItpIsFeederBackupEnabled.
VAR_INPUT
VAR_INPUT
bEnable : BOOL;
bExecute : BOOL;
tTimeOut : TIME;
END_VAR
bEnable: TRUE: enables feeder backup, FALSE: disables feeder backup
bExecute: The command is triggered by a positive edge at this input.
tTimeOut: ADS Timeout-Delay
VAR_IN_OUT
VAR_IN_OUT
sNciToPlc : NCTOPLC_NCICHANNEL_REF;
END_VAR
sNciToPlc: The structure of the cyclic channel interface from the NCI to the PLC. This structure is only accessed for reading. (type: NCTOPLC_NCICHANNEL_REF)
VAR_OUTPUT
VAR_OUTPUT
bBusy : BOOL;
bErr : BOOL;
nErrId : UDINT;
END_VAR
bBusy: This output remains TRUE until the function block has executed a command, but at the longest for the duration supplied to the 'Timeout' input. While Busy = TRUE, no new command will be accepted at the inputs. Please note that it is not the execution of the service but its acceptance whose time is monitored.
bErr: This output is switched to TRUE as soon as an error occurs during the execution of a command. The command-specific error code is contained in ‘nErrId’. Is reset to FALSE by the execution of a command at the inputs.
nErrId: Contains the command-specific error code of the most recently executed command. Is reset to 0 by the execution of a command at the inputs. The error numbers in ErrId can be looked up in the ADS error documentation or in the NC error documentation (error codes above 0x4000).
Voraussetzungen
Entwicklungsumgebung | Zielplattform | Einzubindende SPS-Bibliotheken |
|---|---|---|
TwinCAT V3.1.0 Classic Interpreter TwinCAT V3.1.4024.40 GST Interpreter | PC oder CX (x86 oder x64) | Tc2_NCI |